package com.txtTool.articleTxt.utils.response;

import com.fasterxml.jackson.annotation.JsonIgnore;
import com.fasterxml.jackson.annotation.JsonInclude;

import java.io.Serializable;

/**
 * 保证序列化json的时候,如果是null的对象,key也会消失
 *
 * @param <T>
 */
@JsonInclude(JsonInclude.Include.NON_NULL)
public class ServerResponse<T> implements Serializable {
    private int status;
    private String msg;
    private T data;

    private ServerResponse(int status) {
        this.status = status;
    }

    private ServerResponse(int status, T data) {
        this.status = status;
        this.data = data;
    }

    public ServerResponse(int status, String msg, T data) {
        this.status = status;
        this.msg = msg;
        this.data = data;
    }

    private ServerResponse(int status, String msg) {
        this.status = status;
        this.msg = msg;
    }

    /**
     * 使之不在json序列化结果当中
     * SUCCESS(0,"SUCCESS"),
     * ERROR(1,"ERROR"),
     * NEED_LOGIN(10,"NEED_LOGIN"),
     * ILLEGAL_ARGUMENT(2,"ILLEGAL_ARGUMENT");
     *
     * @return
     */
    @JsonIgnore
    public boolean isSuccess() {
        return this.status == ResponseCode.SUCCESS.getCode();
    }

    public int getStatus() {
        return status;
    }

    public T getData() {
        return data;
    }

    public String getMsg() {
        return msg;
    }


    public static <T> ServerResponse<T> success() {
        return new ServerResponse(ResponseCode.SUCCESS.getCode());
    }

    public static <T> ServerResponse<T> success(String msg) {
        return new ServerResponse(ResponseCode.SUCCESS.getCode(), msg);
    }

    public static <T> ServerResponse<T> success(T data) {
        return new ServerResponse(ResponseCode.SUCCESS.getCode(), data);
    }

    public static <T> ServerResponse<T> success(String msg, T data) {
        return new ServerResponse(ResponseCode.SUCCESS.getCode(), msg, data);
    }

    public static <T> ServerResponse<T> error() {
        return new ServerResponse(ResponseCode.ERROR.getCode(), ResponseCode.ERROR.getDesc());
    }

    public static <T> ServerResponse<T> error(String errorMessage) {
        return new ServerResponse(ResponseCode.ERROR.getCode(), errorMessage);
    }

    public static <T> ServerResponse<T> error(int errorCode, String errorMessage) {
        return new ServerResponse(errorCode, errorMessage);
    }

    @Override
    public String toString() {
        return "ServerResponse{" +
                "status=" + status +
                ", msg='" + msg + '\'' +
                ", data=" + data +
                '}';
    }
}
